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200 mhz to 6 ghz 35 db t rupwr? detector data sheet adl5903 rev. b document feedback information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change witho ut notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062 - 9106 , u.s.a. tel: 781.329.4700 ? 2013 C 2015 analog devices, inc. all rights reserved. technical support www.an alog.com features accurate rms - to - dc conversion from 2 00 mhz to 6 ghz measurement dynamic range of 35 db r ipple - free transfer function single - ended input, 50 source compatible n o external matching required waveform and modulation independent, such as gsm/cdma/w - cdma/td - scdma/lte linear in decibels output, scaled 35.5 mv/db at 900 mhz excellent temperature stability operates from 3 .0 v to 5 .0 v from ? 55 c to +125c low power consumption : 3 ma at 3.0 v to 5 .0 v supply 8 - lead, 2 mm 2 mm lfcsp package applications power amplifier linearization/control loops transmitter power controls transmitter signal strength indication (tssi) rf instrumentation wireless repeaters functional block dia gram figure 1. general description the adl 5903 is a true rms responding power detector that has a 35 db measurement range . it features low power consumption and an intrinsically ripple - free error transfer function. the adl5903 provides a solution in a variety of high frequency systems requiring an accurate measurement of signal power. requiring only a single supply of 3.0 v to 5.0 v and a few capacitors, it is easy to use and capable of being driven single - ended or with a balun for differential input drive . an on - chip matching network provides good return loss over the specified frequency range of the device . the adl5903 can operate from 2 00 mhz to 6 ghz and can accept inputs from ? 30 dbm to + 2 0 dbm . the adl5903 can be used to determine the true power of a high frequency signal with a complex modulation envelope including large crest factor signals such as gsm, cdma, w - cdma, td - scdma, and lte mod ulated signals. the output is then proportional to the logarithm of the rms value of the input. in other words, the reading is presented directly in decibels and is scaled about 3 5.5 mv/db at 900 mhz . the adl5903 has low power consumption when operational and a disable mode that further reduces the power consump tion. power consumption is less than 100 a when the adl5903 enters power - down mode thro ugh a logic low at pin enbl. the adl5903 is supplied in a 2 mm 2 mm, 8 - lead lfcsp for operation over the wide temperature range of ? 55 c to +125c. 11769-001 5 1 6 adl5903 rfin enbl rms core internal filtering buffer 630pf 1k? 100? 4pf vpos 2 gnd 8 nic ep 4 creg 3 crms 7 vrms
adl5903 data sheet rev. b | page 2 of 20 table of contents features .............................................................................................. 1 applications ....................................................................................... 1 functional block diagram .............................................................. 1 general description ......................................................................... 1 revision history ............................................................................... 2 specificat ions ..................................................................................... 3 absolute maximum ratings ............................................................ 6 esd caution .................................................................................. 6 pin configuration and function descriptions ............................. 7 typical performance characteristics ............................................. 8 measurement setups ...................................................................... 14 theory of operation ...................................................................... 15 rf input interface ...................................................................... 15 basic connections ...................................................................... 15 choosing a value for c rms ......................................................... 16 device calibration and error calculation .............................. 17 evaluation board schematic and configuration options ........ 19 outline dimensions ....................................................................... 20 ordering guide .......................................................................... 20 revision history 5/15 rev. a to rev. b changes to figure 49 ...................................................................... 19 2 /15 rev. 0 to rev. a added adl5903acpzn operating temperature range of ? 40 c to + 85c ; table 2 .................................................................. 6 changes to ordering guide .......................................................... 20 10/ 13 r evision 0: initial version
data sheet adl5903 rev. b | page 3 of 20 specifications v pos = 5 .0 v, t a = 25c, z o = 50 ? , capacitor c rms = 10 nf , unless otherwise noted . table 1 . parameter test conditions /comments min typ max unit overall function frequency range 200 to 6000 mhz rf input interface pin rfin nominal input impedance 1 single - ended drive 50 output interface pin vrms dc output resistance 100 rise time p in = off to 0 dbm, 10% to 90%, c rms = 10 nf 3.5 s p in = off to 0 dbm, 10% to 90%, c rms = 100 nf 34 s fall time p in = 0 dbm to off, 90% to 10%, c rms = 1 0 nf 32 s p in = 0 dbm to off, 90% to 10%, c rms = 100 nf 330 s f = 300 mhz 1.0 db dynamic range continuous wave ( cw ) input, t a = 25c, vpos = 5 .0 v 37 db cw input, t a = 25c, vpos = 3.0 v 34 db maximum input level, 1.0 db three - point calibration at ? 16 dbm, ? 4 dbm, and + 12 dbm 13 dbm minimum input level, 1.0 db three - point calibration at ?16 dbm, ?4 dbm, and +12 dbm ?24 dbm deviation vs. temperature deviation from output at 25c ?40 c < t a < +85c; p in = 10 dbm ?0.2/+0.03 2 db ?55 c < t a < +125c; p in = 10 dbm ?0.25/+0.05 2 db ?40 c < t a < +85c; p in = ? 10 dbm ? 0.2/+0.15 2 db ?55 c < t a < +125c; p in = ? 10 dbm ? 0.25/+0.2 2 db logarithmic slope calibration at ? 16 dbm and +4 dbm 36. 3 mv/db logarithmic intercept calibration at ? 16 dbm and +4 dbm (x - intercept) ? 39 dbm f = 700 mhz 1.0 db dynamic range cw input, t a = 25c, vpos = 5.0 v 37 db cw input, t a = 25c, vpos = 3.0 v 34 db maximum input level, 1.0 db three - point calibration at ?16 dbm, ?3 dbm, and +13 dbm 14 dbm minimum input level, 1.0 db three - point calibration at ?16 dbm, ?3 dbm, and +13 dbm ? 23 dbm deviation vs. temperature deviation from output at 25c ?40 c < t a < +85c; p in = 10 dbm ? 0.13 db ?55 c < t a < +125c; p in = 10 dbm ? 0.16 db ?40 c < t a < +85c; p in = ?10 dbm ? 0.15/+0.1 2 db ?55 c < t a < +125c; p in = ?10 dbm ? 0. 2 /+0. 2 2 db logarithmic slope calibration at ? 16 dbm and +4 dbm 36.4 mv/db logarithmic intercept calibration at ? 16 dbm and +4 dbm (x - intercept) ? 38 dbm f = 900 mhz 1.0 db dynamic range cw input, t a = 25c, vpos = 5.0 v 37 db cw input, t a = 25c, vpos = 3.0 v 33 db maximum input level, 1.0 db three - point calibration at ?16 dbm, ?3 dbm, and +13 dbm 14 dbm minimum input level, 1.0 db three - point calibration at ?16 dbm, ?3 dbm, and +13 dbm ? 23 dbm deviation vs. temperature deviation from output at 25c ?40 c < t a < +85c; p in = 10 dbm ? 0.12 db ?55 c < t a < +125c; p in = 10 dbm ? 0.1 5 /+0.02 2 db ?40 c < t a < +85c; p in = ?10 dbm ? 0.1 /+0.02 2 db ?55 c < t a < +125c; p in = ?10 dbm ? 0.1 /+0. 1 2 db logarithmic slope calibration at ? 16 dbm and +4 dbm 35.5 mv/db logarithmic intercept calibration at ? 16 dbm and +4 dbm (x - intercept) ? 38 dbm
adl5903 data sheet rev. b | page 4 of 20 parameter test conditions /comments min typ max unit f = 1900 mhz 1.0 db dynamic range cw input, t a = 25c, vpos = 5.0 v 37 db cw input, t a = 25c, vpos = 3.0 v 33 db maximum input level, 1.0 db three - point c alibration at ? 15 dbm, ? 3 dbm, and + 13 dbm 15 dbm minimum input level, 1.0 db three - point calibration at ? 15 dbm, ? 3 dbm, and +13 dbm ? 22 dbm deviation vs. temperature deviation from output at 25c ?40 c < t a < +85c; p in = 10 dbm ? 0.15 db ?55 c < t a < +125c; p in = 10 dbm ?0.1 5 db ?40 c < t a < +85c; p in = ?10 dbm ?0. 3 /+0. 2 2 db ?55 c < t a < +125c; p in = ?10 dbm ?0.3 5 /+0.25 2 db logarithmic slope calibration at ? 16 dbm and +4 dbm 37.2 mv/db logarithmic intercept calibration at ? 16 dbm and +4 dbm (x - intercept) ? 35.5 dbm f = 2140 mhz 1.0 db dynamic range cw input, t a = 25c, vpos = 5.0 v 35 db cw input, t a = 25c, vpos = 3.0 v 32 db maximum input level, 1.0 db three - point calibration at ? 15 dbm, ? 3 dbm, and + 13 dbm 15 dbm minimum input level, 1.0 db three - point calibration at ?15 dbm, ?3 dbm, and +13 dbm ? 20 dbm deviation vs. temperature deviation from output at 25c ?40 c < t a < +85c; p in = 10 dbm ?0.2 db ?55 c < t a < +125c; p in = 10 dbm ?0.2 db ?40 c < t a < +85c; p in = ?10 dbm ?0.4/+0.2 2 db ?55 c < t a < +125c; p in = ?10 dbm ?0.5/+0.3 2 db logarithmic slope calibration at ? 16 dbm and +4 dbm 37.4 mv/db logarithmic intercept calibration at ? 16 dbm and +4 dbm (x - intercept) ? 35 dbm f = 2600 mhz 1.0 db dynamic range cw input, t a = 25c, vpos = 5.0 v 34 db cw input, t a = 25c, vpos = 3.0 v 32 db maximum input level, 1.0 db three - point calibration at ? 14 dbm , ? 2 dbm, and + 14 dbm 15 dbm minimum input level, 1.0 db three - point calibration at ?14 dbm , ?2 dbm, and +14 dbm ? 19 dbm deviation vs. temperature deviation from output at 25c ?40 c < t a < +85c; p in = 10 dbm ? 0.2 db ?55 c < t a < +125c; p in = 10 dbm ? 0.2 5 db ?40 c < t a < +85c; p in = ?10 dbm ? 0.5/+0.2 2 db ?55 c < t a < +125c; p in = ?10 dbm ? 0.6/+0.3 2 db logarithmic slope calibration at ? 16 dbm and +4 dbm 37.7 mv/db logarithmic intercept calibration at ? 16 dbm and +4 dbm (x - intercept) ? 34 dbm f = 3500 mhz 1.0 db dynamic range cw input, t a = 25c, vpos = 5.0 v 33 db cw input, t a = 25c, vpos = 3.0 v 31 db maximum input level, 1.0 db three - point calibration at ? 12 dbm, 0 dbm, and + 1 4 dbm 16 dbm minimum input level, 1.0 db three - point calibration at ?12 dbm, 0 dbm, and +1 4 dbm ? 17 dbm deviation vs. temperature deviation from output at 25c ?40 c < t a < +85c; p in = 10 dbm ? 0.2 db ?55 c < t a < +125c; p in = 10 dbm ? 0.25 db ?40 c < t a < +85c; p in = ? 10 dbm ?0.6/+0. 3 2 db ?55 c < t a < +125c; p in = ? 10 dbm ? 0.75/+0.4 2 db logarithmic slope calibration at ? 12 dbm and +8 dbm 39 mv/db logarithmic intercept calibration at ? 12 dbm and +8 dbm (x - intercept) ? 31.5 dbm
data sheet adl5903 rev. b | page 5 of 20 parameter test conditions /comments min typ max unit f = 5800 mhz 1.0 db dynamic range cw input, t a = 25c, vpos = 5 .0 v 35 db cw input, t a = 25c, vpos = 3 .0 v 32 db maximum input level, 1.0 db three - point calibration at ? 12 dbm, ? 2 dbm, and + 12 dbm 19 dbm minimum input level, 1.0 db three - point calibration at ?12 dbm, ?2 dbm, and +12 dbm ? 16 dbm deviation vs. temperature deviation from output at 25c ?40 c < t a < +85c; p in = 10 dbm ?0.6/+0.3 2 db ?55 c < t a < +125c; p in = 10 dbm ? 0.7 /+0.4 2 db ?40 c < t a < +85c; p in = ? 10 dbm ?1.1/+0.7 2 db ?55 c < t a < +125c; p in = ? 10 dbm ?1.4/+1.1 2 db logarithmic slope calibration at ? 12 dbm and +8 dbm 40 mv/db logarithmic intercept calibration at ? 12 dbm and +8 dbm (x - intercept) ? 27 dbm power - down interface pin enbl voltage level to enable 2 vpos v voltage level to disable 0 0.6 v input bias current v enbl = 2.2 v <20 na power supply interface pin vpos supply voltage 3 .0 5.25 v quiescent current t a = 25c, n o signal at rfin , vpos = 5 .0 v 3 ma t a = 125c, n o signal at rfin , vpos = 5 .0 v 3.6 ma power - down current enbl input low condition <100 a 1 refer to figure 12 , input return loss, s 11 (db). 2 the slash indicates a range. for example, ?0.2/+0.03 means ?0.2 to +0.03.
adl5903 data sheet rev. b | page 6 of 20 absolute maximum ratings table 2. parameter rating supply voltage, vpos 5.5 v input average rf power 1, 2 20 dbm equivalent voltage, sine wave input 3.16 v peak internal power dissipation 200 mw jc 3 3.95c/w ja 3 78.5c/w maximum junction temperature 150c operating temperature range ( adl5903acpzn ) ?40c to +85c operating temperature range ( adl5903scpzn ) ?55c to +125c storage temperature range ?65c to +150c lead temperature (soldering, 60 sec) 300c 1 this is for long durations. excursions above this level, with durations much less than 1 second, are possible without damage. 2 driven from a 50 source. 3 no airflow with the exposed pad soldered to a 4-layer jedec board. stresses at or above those listed under absolute maximum ratings may cause permanent damage to the product. this is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. operation beyond the maximum operating conditions for extended periods may affect product reliability. esd caution
data sheet adl5903 rev. b | page 7 of 20 pin configuration and fu nction descriptions figure 2. pin configuration table 3. pin function descriptions pin no. mnemonic description 1 rfin signal input. this pin is internally ac-coupled with a broadband matching network. see the rf input interface section for broadband matching options. 2 gnd device ground. connect gnd to syst em ground using a low impedance path. 3 crms rms averaging pin. connect a capacitor between the creg and crms pins for rms averaging. see the choosing a value for c rms section for choosing the correct c rms capacitor value. 4 creg bypass capacitor connection for on-chip regulator. bypass this pin to ground using a capacitor and a series resistor. see basic connections section for more information. 5 vpos supply voltage. the operational range is 3.0 v to 5.25 v. 6 enbl enable. connect the enbl pin to a logic high (2 v to vpos) to enable the device. connect the enbl pin to a logic low (0 v to 0.6 v) to disable the device. 7 vrms signal output. the output from the vr ms pin is proportional to the logari thm of the rms value at the input level. 8 nic no internal connection. do not connect to this pin. this pin is not internally connected. 0 ep exposed pad. the exposed pad is internally connected to gnd and requires a good thermal and electrical connection to the ground of the printed circuit board (pcb). 11769-002 3 crms 4 creg 1 rfin 2 gnd 6 enbl 5 vpos 8nic 7vrms adl5903 top view (not to scale) notes 1. nic = no internal connection. 2 . the exposed pad is internally connected to gnd and requires a good thermal and electrical connection to the ground of the printed circuit board (pcb).
adl5903 data sheet rev. b | page 8 of 20 typical performance characte ristics v po s = 5 .0 v , c rms = 1 0 n f, t a = ? 55 c (light blue), t a = ?40c (blue), +25 c (green), +85c (red), +125c (orange) where appropriate . input l evels referred to 50 ? source . input rf signal is a sine wave (cw), unless otherwise indicated. figure 3. typical v rms vs. input level vs. frequency (300 mhz to 5.80 ghz) at 25c figure 4. error from cw linear reference vs . input level and signal modulation (qpsk, 16 qam, 64 qam), frequency = 900 mhz, c rms = 1 f figure 5. error from cw linear reference vs. input level and signal modulation ( one - car rier w - cdma, four - carrier w - cdma) , frequency = 2.14 ghz, c rms = 1 f figure 6. typical v rms vs. frequency for four input levels figure 7. error from cw linear reference vs. input level and signal modulation (qpsk, 16 qam, 64 qam), frequency = 2.14 ghz, c rms = 1 f figure 8. error from cw linear reference vs. input level and signal modulation (lte tm1 one - carrier, 20 mhz ), frequency = 2.14 ghz, c rms = 1 f 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 p in (dbm) output vo lt age (v) 300mhz 700mhz 900mhz 1.90ghz 2.14ghz 2.60ghz 3.50ghz 5.80ghz 1 1769-003 11769-004 10 5 0 ?5 ?10 ?15 ?20 ?30 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 p in (dbm) output vo lt age (v) cw 16 qam pe p = 6.34db 64 qam pe p = 7.17db qpsk pe p = 3.8db 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 error (db) calibr a tion a t ?16dbm, ?3dbm, and +8dbm ?25 11769-005 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) cw 4-carrier w -cdm a pe p = 12.08dbm 1-carrier w -cdm a pe p = 10.56db 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 calibr a tion a t ?15dbm, ?3dbm, and +8dbm 1g 6g 100m 2.0 1.5 1.0 0.5 0 frequenc y (hz) output vo lt age (v) ?20dbm ?10dbm 0dbm 10dbm 11769-006 11769-007 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 p in (dbm) output vo lt age (v) 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 error (db) cw 16 qam pe p = 6.34db 64 qam pe p = 7.17db qpsk pe p = 3.8db calibr a tion a t ?15dbm, ?3dbm, and +8dbm 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) cw l te tm1 1-carrier 20mhz pe p = 1 1.58db 11769-008 calibr a tion a t ?15dbm, ?3dbm, and +8dbm
data sheet adl5903 rev. b | page 9 of 20 figure 9. output voltage vs. input level and supply voltage at 900 mhz figure 10 . output response to rf burst input, carrier frequency = 900 mhz , c rms = 100 nf (see figure 36 in the measurement setups section ) figure 11 . output response to gating on enbl pin for various rf input levels, carrier frequency = 900 mhz, c rms = 100 nf (see figure 38 in the measurement setups section ) figure 12 . input return loss vs. rf frequency figure 13 . output response to rf burst input, carrier frequency = 900 mhz, c rms = 10 nf ( see figure 36 in the measurement setups section ) figure 14 . output response to gating on power supply for various rf input levels, carrier frequency = 900 mhz, c rms = 100 nf, 5 .0 v supply ( see figure 37 , in the measurement setups section) ) 0 0.5 1.0 1.5 2.0 2.5 ?40 ?30 ?20 ?10 0 10 20 output vo lt age (v) p in (dbm) 3.00v 3. 4 0v 3. 8 0v 4.00v 4. 2 5v 4. 5 0v 5.00v 11769-009 4.00v t o 5.00v follow same plot 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 ?0.4 ?0.2 0 0.2 0.4 0.6 0.8 1.0 1.2 v out (v) time (ms) rf b u rs t p u ls e + 5d b m 0d b m ?5 d b m ?15 d b m 11769-010 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 ?0.2 ?0.1 0 0.1 0.2 0.3 0.4 1.5 0.6 output (v) time (ms) 11769-016 e n a b l e p u l s e + 5 d b m 0 d b m ?5 d b m ?15 d b m ?25 ?20 ?15 ?10 ?5 0 0 1 2 3 4 5 6 return loss, s 1 1 (db) frequenc y (ghz) 11769-012 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 ?0.2 0 0.2 0.4 0.6 0.8 output (v) time (ms) + 5d b m 0d b m ?5 d b m ?15 d b m rf b u rs t p u ls e 11769-011 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 ?0.2 ?0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 output (v) time (ms) supp l y vo lt age p u ls e + 5d b m 0d b m ?5 d b m ?15 d b m 11769-015
adl5903 data sheet rev. b | page 10 of 20 figure 15 . v rms and log conformance error vs. input level and temperature at 300 mhz figure 16 . v rms and log conformance error vs. input level and temperature at 700 mhz figure 17 . v rms and log conformance error vs. input level and temperature at 900 mhz figure 18 . distribution of log conformance error with respect to calibration at 25c vs. input level and temperature at 300 mhz figure 19 . distribution of log conformance error with respect to calibration at 25c vs. input level and temperature at 700 mhz figure 20 . distribution of log conformance error with respect to calibration at 25c vs. input level and temperature at 900 mhz 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 11769-017 calibr a tion a t ?16dbm, ?4dbm, and +12dbm 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 11769-021 calibr a tion a t ?16dbm, ?3dbm, and +13dbm 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 11769-022 calibr a tion a t ?16dbm, ?3dbm, and +13dbm 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 11769-020 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) 11769-024 ?55c ?40c +25c +85c +125c 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) 11769-025
data sheet adl5903 rev. b | page 11 of 20 figure 21 . v rms and log conformance error vs. input level and temperature at 1.9 ghz figure 22 . v rms and log conformance error vs. input level and temperature at 2.14 ghz figure 23 . v rms and log conformance error vs. input level and temperature at 2.6 ghz figure 24 . distribution of log conformance error with respect to calibration at 25c vs. input level and temperature at 1.9 ghz figure 25 . distribution of log conformance error with respect to calibration at 25c vs. input level and temperature at 2.14 ghz figure 26 . distribution of log conformance error with respect to calibration at 25c vs. input level and temperature at 2.6 ghz 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 11769-023 calibr a tion a t ?15dbm, ?3dbm, and +13dbm 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) error (db) ?55c ?40c +25c +85c +125c 11769-027 calibr a tion a t ?15dbm, ?3dbm, and +13dbm 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) error (db) 20 15 ?55c ?40c +25c +85c +125c 11769-028 calibr a tion a t ?14dbm, ?2dbm, and +14dbm 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) error (db) 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) 11769-026 ?55c ?40c +25c +85c +125c 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) error (db) 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) 11769-030 ?55c ?40c +25c +85c +125c 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) 11769-031
adl5903 data sheet rev. b | page 12 of 20 figure 27 . v rms and log conformance error vs. input level and temperature at 3.5 ghz figure 28 . v rms and log conformance error vs. input level and temperature at 5.8 ghz figure 29 . distribution of v rms , p in = 8 dbm, 900 mhz figure 30 . distribution of log conformance error with respect to calibration at 25c vs. input level and temperature at 3.5 ghz figure 31 . distribution of log conformance error with respect to calibration at 25c vs. input level and temperature at 5.8 g hz figure 32 . distribution of v rms , p in = ?16 dbm, 900 mhz 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) error (db) 20 15 ?55c ?40c +25c +85c +125c 11769-029 calibr a tion a t ?12dbm, 0bm, and +14dbm 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) error (db) ?55c ?40c +25c +85c +125c 11769-033 calibr a tion a t ?12dbm, ?2dbm, and +12dbm 1.50 1.55 1.60 1.65 1.70 1.75 0 200 400 600 800 1000 1200 1400 v rms (v) count 11769-034 represents more than 8000 p arts 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 11769-032 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 11769-036 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 p in (dbm) 0.60 0.65 0.70 0.75 0.80 0.85 0 200 400 600 800 1000 1200 1400 v rms (v) count 11769-037 represents more than 8000 p arts
data sheet adl5903 rev. b | page 13 of 20 figure 33 . distribution of intercept at 900 mhz figure 34 . supply current vs. input level (at ?55c, ?40c, +25c, +85c, +125c) figure 35 . distribution of slope at 900 mhz ?44 ?42 ?40 ?38 ?36 ?34 ?32 0 200 400 600 800 1000 1200 1400 intercept (dbm) count 11769-038 represents more than 8000 p arts calibr a tion between ?16dbm and ?4dbm 20 10 0 ?10 ?20 ?30 ?40 30 25 20 15 10 5 0 p in (dbm) supp l y current (ma) ?55c ?40c +25c +85c +125c 11769-014 30 32 34 36 38 40 0 200 400 600 800 1000 1200 slope (mv/db) count 11769-035 represents more than 8000 p arts calibr a tion between ?16dbm and ?4dbm
adl5903 data sheet rev. b | page 14 of 20 measurement setups figure 36 . hardware configuration for output response to rf burst input measurements figure 37 . hardware configuration for output response to power supply gating measurements figure 38 . hardware configuration for output response to enbl pin gating measurements rohde & schwarz signal generator smr 40 adl5903 evaluation board pulse in rf out rfin vpos enbl 1m? trigger vrms hp e3631a power supply agilent 33522a function/arbitratry waveform generator ch2 ch1 tektronix digital phosphor oscilloscope tds5104 11769-013 ad8019 evaluation board +1 11769-018 rohde & schwarz signal generator smr 40 adl5903 evaluation board pulse in rf out rfin 1m? trigger vrms agilent 33522a function/arbitratry waveform generator ch2 ch1 tektronix digital phosphor oscilloscope tds5104 vpos enbl 11769-019 rohde & schwarz signal generator smr 40 adl5903 evaluation board pulse in rf out rfin vpos enbl 1m? trigger vrms hp e3631a power supply agilent 33522a function/arbitratry waveform generator ch2 ch1 tektronix digital phosphor oscilloscope tds5104
data sheet adl5903 rev. b | page 15 of 20 theory of operation the adl5903 is a true rms detector with a 35 db measurement range at 2.14 ghz with useable range up to 6 ghz. it features no error ripple over its range, low temperature drift, and very low power consumption. temperature stability of the rms output measurements provides ?0.5 db error typical over the temperature range of ?40c to +85c up to 3.5 ghz. the measurement output voltage scales linearly in decibels with a slope of approximately 36 mv/db. the adl5903 operates from a nominal supply voltage of 3.0 v to 5.0 v. the rms core is internally regulated to 3.6 v, that is, the full measurement range is available for supply voltages between 3.8 v and 5.0 v. below 3.8 v, the high end of the measurement range degrades gradually whereas the low end shows no noticeable change in error characteristics or calibration requirements. at 2.14 ghz, the measurement range extends to 14 dbm for 3.8 v and above, and to 12 dbm at a supply voltage of 3.0 v. the low end of the adl5903 measurement range is limited by internal device offsets that vary from device to device but tracks well over temperature. see the device calibration and error calculation section for more information. the core rms processing of the adl5903 uses a proprietary technique that provides accuracy for complex modulation signals irrespective of the crest factor of the input signal. an integrating filter capacitor at pin crms performs the square domain averaging. an rf input matching network allows the device to be driven with a 50 source with reasonable input return loss. the measurement intercept varies with frequency, as shown in table 1 and the typical performance characteristics section. figure 39. simplified architecture rf input interface a single-ended input at the rfin pin drives the adl5903 , and a 50 source can drive it directly without any external components. figure 40 shows the simplified rf input interface. an on-chip matching network presents 133 of shunt resistance to ground and ac coupling to the rms core. the esd protection circuitry is designed to allow voltage swings as high as 2 v at the input. as shown in figure 12 (input return loss, s 11 ), the device offers excellent input return loss over most of the operating range but rises to around ?9 db near its minimum operating frequency of 200 mhz. add an external shunt resistance of 127 , if desired, when operating at low frequencies to improve input return loss over the range of 200 mhz to 1.7 ghz. figure 41 shows a comparison of the input return loss, with and without the external shunt resistor. figure 40. simplified rf input interface figure 41. return loss with and wi thout external shunt termination basic connections the adl5903 requires a single supply of 3.0 v to 5.0 v. the supply is connected to the vpos supply pin. this pin is decoupled using two capacitors with values equal or similar to those shown in figure 44. place these capacitors as near the vpos pin as possible. the creg pin provides a bypass capacitor connection for an on-chip regulator. the creg pin is connected to ground with a 4.02 resistor and a 0.1 f capacitor. the crms pin provides an averaging function for the rms computation and is referenced to pin 4 (creg). a filter capacitor can be placed between the crms and creg pins. more information on choosing the c rms capacitor is provided in the choosing a value for c rms section. using smaller values for c rms allows quicker response times to a pulsed waveform. higher values of c rms are required for correct rms computation as the peak to average ratio of modulated signals increases and the bandwidth of the modulated signals decreases. 11769-039 5 1 6 adl5903 rfin enbl rms core internal filtering buffer 630pf 1k ? 100 ? 4pf v pos 2 gnd 8 nic ep 4 cre g 3 crms 7 vrms esd vpos matching network gnd 133 ? 4pf optional 127 ? esd 11769-040 ?25 ?20 ?15 ?10 ?5 0 0123456 frequency (ghz) return loss, s 11 (db) external 127 ? shunt term no shunt term 11769-041
adl5903 data sheet rev. b | page 16 of 20 the enbl pin configures the device enable interface. connecting the enbl pin to a logic high signa l (2 v to 5 .0 v) enables the device, and connecting the pin to a logic low signal (0 v to 0.6 v) disables the device. the e xposed p ad is internally connected to gnd and must be soldered to a l ow i mpedance g round plane. the output buffer of the adl5903 features a pmos common source drive transistor and a resistive pull - down load. under typical operating conditions, the internal measurement range of the device limits the output signal range to 2.2 v. place a 100 ? resistor on chip in series with the output to allow additional filtering , if desired. choosing a value for c rms c rms provides the averaging function for the internal rms computation. using the minimum value for c rms allows the quickest response time to a pulsed waveform but leaves signifi - cant output noise on the output voltage signal. however , a large filter capacitor reduces output noise and improves the rms measurement accuracy but at the expense of the response t ime. in applications where the response time is not critical, place a relatively large capacitor on the crms pin. in figure 44 , a value of 0.1 f is used. for most si gnal modulation schemes, this value ensures excellent rms measurement compliance and low residual output noise. there is no maximum capacitance limit for c rms . figure 42 and figure 43 show how output noise varies with c rms when the adl5903 is driven by a single carrier w - cdma (test model tm1 - 64, peak envelope power = 10.56 db, bandwidth = 3.84 mhz) and a n lte signal (test model tm1 - 20 , peak envelope power = 11.58 db, bandwidth = 20 mhz) , respectively . figure 42 and figure 43 also show h ow the value of c rms affects the response time . this is measured by applying an rf burst at 2.14 ghz a t 0 dbm to the adl5903 . the 10% to 90% rise time and 90% to 10% fall time are then measured. figure 42 . output noise, rise / fall times vs. c rms capacitance, single carrier w - cdma ( test model tm1 - 64) at 2.14 ghz with p in = 0 dbm figure 43 . output noise, rise/ fall times vs. c rms capacitance, single carrier lte ( test model tm1 - 20) at 2.14 ghz with p in = 0 dbm figure 44 . basic connections 0.1 1 10 100 1k 10k 100k 1m 0 100 200 300 400 500 600 700 0.1 1 10 100 1000 rise/ f al l time (s) output noise (mv p-p) c rms ca p aci t ance (nf) o u tp u t n o i s e ( m v p - p ) 1 0 % to 90 % r i se ti me ( s ) 9 0 % to 10 % f a ll ti m e ( s ) 11769-042 0.1 1 10 100 1k 10k 100k 1m 10m 100m 0 50 100 150 200 250 300 350 400 450 0.1 1 10 100 1000 rise/ f al l time (s) output noise (mv p-p) cf l t4 (nf) o u tp u t n o i s e ( m v p - p ) 1 0 % to 90 % r i se ti me ( s ) 9 0 % to 10 % f a ll ti m e ( s ) 11769-043 r f i n vpos vrms g n d adl5903 internal filtering crms e n b l r ms c o r e bu ff er 100 1k creg n i c 630pf ep 4pf 0.1f 4.02? 0.1f vpos r f i n vrms v enbl 0.1f 100pf 6 5 4 3 7 1 2 8 11769-044
data sheet adl5903 rev. b | page 17 of 20 table 4. recommended minimum c rms values for various modulation schemes modulation/standard peak envelope power ratio (db) carrier bandwidth (mhz) c rmsmin (nf) output noise (mv p-p) rise/fall times (s) qpsk, 5 msps (sqr cos filter, ? = 0.35) 4.0 5 10 140 3.5/32 qpsk ,15 msps (sqr cos filter, ? = 0.35) 4.1 15 10 80 3.5/32 64 qam, 1 msps (sqr cos filter, ? = 0.35) 7.4 1 1000 60 280/2600 64 qam, 5 msps (sqr cos filter, ? = 0.35) 7.4 5 100 50 34/330 64 qam, 13 msps (sqr cos filter, ? = 0.35) 7.4 13 100 50 34/330 w-cdma, one-carrier, tm1-64 10.56 3.84 100 80 34/330 w-cdma four-carrier, tm1-64, tm1-32, tm1-16, tm1-8 12.08 18.84 100 96 34/330 lte, tm1, one-carrier, 20 mhz (2048 qpsk subcarriers) 11.58 20 100 76 34/330 table 4 shows the recommended minimum values of c rms for popular modulation schemes. the output response time and noise performance are also shown. using lower capacitor values results in faster response times but can result in degraded rms measurement accuracy. if the output noise shown in table 4 is unacceptably high, it can be reduced by increasing c rms or by implementing an averaging algorithm after the output voltage of the adl5903 has been sampled by an analog-to-digital converter (adc). the values in table 4 were experimentally determined to be the minimum capacitance that ensures good rms accuracy for that particular signal type. this test was initially performed with a large capacitance value on the crms pin (for example, 10 f). the value of v rms was noted for a fixed input level (for example, ?10 dbm). the value of c rms was then progressively reduced (this can be accomplished with press-down capacitors) until the value of v rms started to deviate from its original value (this indicates that the accuracy of the rms computation is degrading and that c rms is becoming too small). in general, the minimum c rms required increases as the peak-to- average ratio of the carrier increases. the minimum required c rms also tends to increase as the bandwidth of the carrier decreases. with narrow-band carriers, the noise spectrum of the v rms output tends to have a correspondingly narrow profile. the relatively narrow spectral profile demands a larger value of c rms that reduces the low-pass corner frequency of the averaging function and ensures a valid rms computation. device calibration and error calculation the measured transfer function of the adl5903 at 2.14 ghz is shown in figure 45, which contains plots of both output voltage and log conformance error vs. input level for one device. as the input level varies from ?30 dbm to +14 dbm, the output voltage varies from near 0 v to 1.9 v. figure 45. 2.14 ghz v rms and log conformance error at +25c, ?40c, ?55c, +85c, and +125c board level calibration must be performed to achieve high accuracy because the slope and intercept vary from device to device. for a two-point calibration, write the equation for the idealized output voltage as v rms(ideal) = slope ( p in ? intercept ) (1) where: slope is the change in output voltage divided by the change in input level (dbm). p in is the input level. intercept is the calculated input level at which the output voltage is equal to 0 v (note that intercept is an extrapolated theoretical value and not a measured value). in general, calibration is performed during equipment manufacture by applying two or more known signal levels to the input of the adl5903 and measuring the corresponding output voltages. the calibration points must be within the linear operating range of the device. with a two-point calibration, calculate the slope and intercept as follows: slope = ( v rms1 ? v rms2 )/( p in1 ? p in2 ) (2) intercept = p in1 ? ( v rms1 / slope ) (3) 20 15 10 50 ?5?10?15?20?25?30 ?35?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output voltage (v) error (db) ?55c ?40c +25c +85c +125c 11769-045 calibration at ?10dbm and +10dbm
adl5903 data sheet rev. b | page 18 of 20 after the slope and intercept are calculated (and stored in some form) an equation can be used to calculate an unknown i nput l evel based on the output voltage of the detector. p in (unknown) = ( v rms(measured ) / slope ) + intercept ( 4 ) the log conformance err or is the difference between this straight line and the actual performance of the detector. error (db) = ( v rms(measured ) ? v rms(ideal) )/slope ( 5 ) figure 45 shows the log conformance error at five temperatures, ranging from ? 55 c to +125c , when using a two - point calibration (calibration points are +10 dbm and ?10 dbm) measured at one temperature, 25c. the error at the two calibration points passes through 0 db for th e 25c curve by definition. multipoint calibration can be used to further extend the measurement dynamic range. in this case , the transfer function is segmented, with each segment having its own slope and intercept. figure 46 shows the error plot of the same device with calibration points at ?16 dbm , ? 4 dbm , and +12 dbm . the three - point , dual - slope calibration results in ti ghter error bounds over the high end of the ra nge and extends the lower measurement range to better than ? 20 dbm for 1 db error. figure 46 . 2.14 ghz v rms and log conformance error at + 25 c , ? 40 c , ? 55 c , + 85 c, and + 125c for the example shown in figure 46 , the error drift with tempera - ture is very small over the upper 20 db of the measurement range, varying 0.3 db, but widens at lower power levels, from ? 20 dbm to ? 5 dbm to as high as 0.9 db. this is typical performance, al though some devices may perform better. figure 47 . 2.14 ghz v rms and log conformance error for second device at + 25 c , ?40 c , ? 55 c , + 85 c, and + 125c for comparison , th e three - point calibration of a different device is shown in figure 47 for the same frequency and calibration points. f or this example , note that the device has greater dynamic range, and the temperature dependence of error at lower power levels is inverted. finally, figure 48 shows the log conform ance error at 2.14 ghz for a collection of four devices at + 25 c , ?40 c , and + 85c with three - point calibration ( ?16 dbm , ? 4 dbm , and +12 dbm ). the error plots at each temperature are calculated with respect to the slope and intercept measurements from the 25c line for each device . this is consistent with a typical production environment where calibration at one temperature is required. figure 48 illustrates the various error scenarios possible at low i nput l evel s. the dynamic range of the three - point calibrated devices extends to below ? 20 dbm for 1.0 db error. figure 48 . 2.14 ghz v rms and log conformance + 25 c , ? 40 c , and + 85c for multiple devices 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 11769-046 calibr a tion a t ?16dbm, ?4dbm, and +12dbm 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) ?55c ?40c +25c +85c +125c 11769-047 calibr a tion a t ?16dbm, ?4dbm, and +12dbm 20 15 10 5 0 ?5 ?10 ?15 ?20 ?25 ?30 ?35 ?40 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 6 5 4 3 2 1 0 ?1 ?2 ?3 ?4 ?5 ?6 p in (dbm) output vo lt age (v) error (db) ?40c +25c +85c 11769-048 calibr a tion a t ?16dbm, ?4dbm, and +12dbm
data sheet adl5903 rev. b | page 19 of 20 evaluation board sch ematic and configuration option s figure 49 . evaluation board schematic table 5 . evaluation board configuration options component description default value rfin, r208 rf input. r208 is a shunt input termination to optimize low frequency input return loss. rfin = sma connector, r208 = dni 1 r205, r206, s201 device e nable interface . header s201 configures the enable network. pin 2 and pin 3 of s201 enable the resistive divider network. r205 and r206 form a resistive divider network to step down the voltage provided by vpos for an optimal enable setpoint condition. r205 = 100 k, r20 6 = 100 k, s201 = jumper pin 2 and jumper pin 3 c201, c202 power supply decoupling. the nominal supp ly decoupling consists of a 100 pf and a 0.1 f capacitor placed near the device. c 201 = 100 pf, c202 = 0.1 f c209 rms a veraging c apacitor . c209 is the capacitor (c rms ) interfacing creg and crms for rms averaging. set t he value of the rms averaging capacitor on the peak -to - average ratio of the input signal and based on the desired output response time and residual output noise. see the choosing a value for c rms section for more information . c209 = 0. 1 f r202, c203a bypass capacitor connection for on - chip regulator. r202 and c203a are connected to the creg pin to provide decoupling for the internal regulator. r202 = 4.02 , c203a = 0.1 f r204, c210 rms output. r204 and c210 provide options for output filtering and to mimic system load conditions. r204 = 0 , c210 = dni 1 c203, c204, c204a, c205, c205a, r203, r207, r209 test h eader interface. c203, c204, c204a, c205, c205a, r203, r207, r208, r209 = dni 1 ep exposed p ad. t he exposed p ad is soldered to a ground pad, which provides both a thermal ground and an electrical ground. 1 dni = do not install. vout rfin 1 2 3 4 comm rfin adl5903 8 7 6 5 crms creg vrms nic vpos enbl vpos vpos c201 100pf c202 0.1f 4.02? dni enbl r208 dni r207 dni r202 r206 100k? r205 100k? r209 dni r204 0? out c210 dni c203 dni c203a 0.1f comm ep p201 (24-pin test header) 1 2 s201 3 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 b a c205a dni to p201 r203 dni to p201 to p201 c205 dni c204a dni c204 dni to p201 0.1f c209 11769-049
adl5903 data sheet rev. b | page 20 of 20 outline dimensions figure 50. 8-lead lead frame chip scale package [lfcsp_ud] 2.00 mm 2.00 mm body, ultra thin, dual lead (cp-8-10) dimensions shown in millimeters ordering guide model 1 temperature range package description pack age option branding ordering quantity adl5903acpzn-r7 ?40c to +85c 8-lead lfcsp_ud, 7 tape and reel cp-8-10 bs 3,000 adl5903scpzn-r7 ?55c to +125c 8-lead lfcsp_ud, 7 tape and reel cp-8-10 cj 3,000 ADL5903-EVALZ evaluation board 1 z = rohs compliant part. 1.70 1.60 1.50 0.425 0.350 0.275 top view 8 1 5 4 0.30 0.25 0.20 bottom view pin 1 index area seating plane 0.60 0.55 0.50 1.10 1.00 0.90 0.20 ref 0.15 ref 0.05 max 0.02 nom 0.50 bsc exposed pad p i n 1 i n d i c a t o r ( r 0 . 1 5 ) for proper connection of the exposed pad, refer to the pin configuration and function descriptions section of this data sheet. 01-14-2013- c 2.10 2.00 sq 1.90 ?2013C2015 analog devices, inc. all ri ghts reserved. trademarks and registered trademarks are the prop erty of their respective owners. d11769-0-5/15(b)

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